Spring-motor hair cutter



Aug. 31, 192 w 1,598,329

P. URSINO SPRING MOTOR HAIR CUTTER Filed August 28 1924 7 5 5 37 22 32 39 4z 52 i L 229 30 25 w 55 INVENTOR Pas uo/e (/rs/no ATTORNEY Patented Aug. 31, 1926.

PATENT OFFICE.

PASQUA'LE URSINO, OF SEATTLE, WASHINGTON.

SPRING-MOTOR HAIR our'rnn.

Application filed August 28, 1924. Serial No. 734,596.

This invention relates to hair cutting implements for barber and domestic use.

The object of the invention, generally, is the provision of a simple, inexpensive, and efficient device of this character.

A further object is to provide a hair cutting device which is readily adjusted for trimming hair to uniform or graduated lengths.

A further object. is to produce means for sharpening the cutter knives without removing the same from the implement.

More specific objects and advantages of the invention will appear in the following specification. 1

The invention consists in the novel construction, adaptation and combination of parts hereinafter described and claimed.

In the accompanying drawing Figure 1 is a plan view of a hair cutting implement embodying my invention; Fig. 2 is a longitudinal vertical section taken substantially on line 22 of Fig. 1;'Fig. 3 is a transverse vertical section on broken line 33 of Fig. 2; Fig. L is a perspective fragmentary view of the comb member; Fig. 5 is a sectional view on line 5-5 of Fig. 2; and Fig. 6 is a fragmentary longitudinal section of a detail of the invention.

In said drawing','the reference numerals 10 represent spiral cutting blades connected as by means of discs 11 to a shaft 12. This shaft is journaled in the .ends 13 and 14; of a housing 15 which is rigid with a casing 16 having a tubular handle member 17.

The shaft 12 is rotated through the medium of a spur gear 18 or by means of a train of spur gears 19 and 20 (see Fig. 5) from a master gear 21 at the end of a rotatable drum 22 which constitutes the casing of a spring motor of known or suitable type.

The power spring 23 of said motor is wound by means of a key, indicated by dotted line 24, and astem 25 extending axi-' allythrough the handle 17, as shown in Fig. 2.

Inthe gear arrangement shown in Figs. 2 and 5, the gear 19 is always in mesh with the master are rigid with a sleeve 26 splined to the shaft 12 and are shiftable as by means of a lever 27 to cause the gear 18 to mesh with the master gear 21, or have the gear .20 mesh with the gear 19, according to whether it is desired to drive the shaft 12 in one rotary direction or the other,

gear 21. The gears 18 and 20' 23 represents a stationary straight knife rigid 1y secured to the ends 13 and 14 of the housing 15 to cooperate as a shearing memher with the spiral blades 10 when the latter are revolved.

29 represents a comb located below the stationary blade 28, and having at each end thereof an arm 30 extending through guides such as 31 which are rigid with the housing 15. The arms 30 above said housing termi nate in fingers 32 disposed longitudinally of the implement.

33 represents a cam mounted for limited rotary motion on the outer peripheral surface of the housing 15, said cam having at its ends ridges 34 extending circumferentially of the housing below the respective dotted line in Fig. 3, are each disposed eccentrically with respect to the aXis of shaft 12 for effecting the elevation of the comb when the cam is suitably revolved. Said cam acts in opposition to springs 35 hearing against collars 36 on the respective arms 30 of the comb 29 to yieldingly retain the latter in its full line position in Fig. 2 and as represented by dotted line 29 in Fig. 3.

The revoluble positions of the cam 33 may be regulated by thumb pressure applied to fingers 32.. These ridges, as indicated by .75

av lug 37 of the cam; or the revoluble movement of the cam is effected by power of the motor when it is desired that the position of the cam with respect to the cutting blades be progressively changed during the cutting operation of the implement. For which purpose the motor is provided with a shaft upon which is loosely mounted a spur pinion 39 engaging an arcuate rack element 4.0 of said cam. The pinion 39 when employed to transmit motion tothe cam is secured to the motor-shaft 38 (see Fig. 6) between a shoulder 41 of the latter and a clamping nut 42 which is screwed upon a threaded reduced portion 43 of shaft 38.

. For stopping and regulating the effective speed of the motor, I provide a brake shoe 44. carried by a spring 45 which tends to press the shoe into engaged relation with. respect to the drum 22. To render the brake shoe 44 inoperative, I provide a thumb controlled bell-crank lever 46 which, as shown in Fig. 2, has one of its. arms engaging spring 15.

, Included in the invention is a strop 47 removably connected within an attachment 4C8 upon the inner periphery of the housing 1.5, as shown in Fig. 3. For stropping the blades 10, the latter are revolved in the 0p- 18 from its engaged relation with the master gear 21 and to engage gear'20 with' the intermediate gear 19.

When employing the implement for cutting hair the strop 47 is omitted.

When the implement is to be usedfor hair cutting, the gear 18 is shifted into mesh with the master gear, and gear 20 is disengaged from the intermediate gear 19, whereupon the latter becomes idle.

in the direction indicated by arrow (1 in Fig. 3 to cooperate with the stationary blade 28 as will be understood.

In use, the implement is held by its handle 17 so that the comb 29 bears against the head of the person whose hair is being cut, and is regulated as to length of hair by adjustin the cam 33 either manually or by means 0% motor 22, as explained above.

It is believed that the construction and manner of operating the invention will be understood from the foregoing description.

What I claim, is

1. In a hair cutter, in combination, a housshaft, a comb, arms rigid with the comb and extending at substantially right angles therefrom, means provided on the housing for guiding said arms radially to and from said blades, springs, and cam devices acting in opposition to said springs forregulating the position of the icomb with respect to said blades.

2. In a hair cutter, the combination with a housing, a knife rigidly connected thereon, a rotary shaft,- blades connected j to saidshaft for revolublemovement, and a The blades are then driven by the motor motor for driving said shaft and the blades, of acomb, having arms disposed at substantially right angles thereto, means provided on said housing and engaging the arms for guiding the comb radially toward and from the said blades, springs provided on the respective arms for effecting movement of the comb from the orbit of said blades, and cam devices acting in oppo sition to said springs for effecting movement of the comb away from the blade 

